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Shade Tree Mechanic
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OP
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hi guys.
is it right that the champion spark plugs
W16Y fit the 1924 utility truck sup H.
If not which champion plugs fit?
many thanks.
paul.
pwj (clayhead)
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Autolite 3076 Spark Plug
3076 Autolite Replaces Champion W14. Non-resistor type plug.
I use autolite 3077 a hotter plug I think you cn get them on ebay.
for more info use forum list above and scroll down to 6 volt and search for plug info. This site has many helpful search tools and other info, after a year or more I am still finding out what this site has to offer.
wishing you good luck with your5 spark plug issue
Ken 45145
Last edited by Ken_Naber; 05/18/09 08:05 AM.
I have a 1927 Chevy Capital AA 4 Door also a 1927 Chevy Touring car, a 1936 Chevy 1/2 ton and a 2010 Corvette LT3 Convertible and a 1953 Packard Caribbean. My tow car is a 2011 Suburban.
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The Champion W16Y,whilst being listed by Champion as being the correct plug for all Chev 4's,has too cold a heat range,and far too short reach.You could try either Champion W89D or Autolite 3077 plugs(same heat range and a longer reach to the combustion chamber),or if you can find them,AC78S plugs. 
CJP'S 29
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Technical Advisor ChatMaster - 10,000
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If you can find them, AC-B is a good plug. On the AC 78S, look for the older version 3/4 reach versus the new plugs at 1/2 in reach.  
RAY Chevradioman http://www.vccacolumbiariverregion.org/1925 Superior K Roadster 1928 Convertible, Sport, Cabriolet 1933 Eagle, Coupe 1941 Master Deluxe 5-Passenger Coupe 1950 Styleline Deluxe 4-Door Sedan 1950 Styleline Deluxe Convertible 2002 Pontiac, Montana, Passenger Van 2014 Impala, 4-Door Sedan, White Diamond, LTZ 2017 Silverado, Double Cab, Z71, 4X4, White, Standard Bed, LTZ If you need a shoulder to cry on, pull off to the side of the road. Death is the number 1 killer in the world.
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Shade Tree Mechanic
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OP
Shade Tree Mechanic
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meny thanks guys for all your help.
I will check out ebay and the forum.
thanks again
paul
pwj (clayhead)
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Joined: Jun 2005
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Backyard Mechanic
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Backyard Mechanic
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Some years ago I prepared a spark plug cross reference for 7/8" SAE plugs. I allocated nine brands over seven heat ranges.I won't go into all that I covered but let us go back to your question.
Basically is a W16Y New Champion plug suitable for your Chevrolet? W16Y is a plug that is slightly above Medium. As such it should work. The coldest plug is a W80N, then W85N then W10, W14,W16Y,W18,W20,W89D and W95D being the hottest.
It appears that eg a W10 plug will work but is difficult to start. Some people use W89D and find that they work well while others find that they are a quick way to destroy a motor.
You can only try plugs and see if they work for your purpose. For what I do a W18 works but having said that I use modern plugs in an insert. Easily replaced and cheap.
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Backyard Mechanic
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Backyard Mechanic
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What is this reach you speak of how is it measured? If you can find them, AC-B is a good plug. On the AC 78S, look for the older version 3/4 reach versus the new plugs at 1/2 in reach.
Thorpe & Sons - VCCA Member #: 515931927 Chevrolet 1-Ton Panel Delivery Truck"Wilford"Blog and Pictures
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The "reach" is measured from the top or the threads to the end of the threads. (The top of the threads is the bottom of the plug body). This plug places the fire closer to the fuel.
RAY Chevradioman http://www.vccacolumbiariverregion.org/1925 Superior K Roadster 1928 Convertible, Sport, Cabriolet 1933 Eagle, Coupe 1941 Master Deluxe 5-Passenger Coupe 1950 Styleline Deluxe 4-Door Sedan 1950 Styleline Deluxe Convertible 2002 Pontiac, Montana, Passenger Van 2014 Impala, 4-Door Sedan, White Diamond, LTZ 2017 Silverado, Double Cab, Z71, 4X4, White, Standard Bed, LTZ If you need a shoulder to cry on, pull off to the side of the road. Death is the number 1 killer in the world.
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PM sent Paul(the re flashing envelope)
CJP'S 29
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Shade Tree Mechanic
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Shade Tree Mechanic
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I thought the reach was the un-threaded part that extends into the combustion chamber?
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Measured from the very tip of the plug to the gasket seat
CJP'S 29
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Shade Tree Mechanic
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Shade Tree Mechanic
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Ok I can see that (CJP'S 29). My experience with the old style plugs is the threaded parts is about the same long or short reach so just measuring the threaded part to get length was not making sense.
Thank you
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CJP'S 29
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